TW201936075A - Manufacturing process of elastic composite shoe material and product thereof capable of achieving better durability for long-term wearing - Google Patents

Abstract

The present invention relates to a manufacturing process of elastic composite shoe material, which includes the following steps: soaking, drying, mixing and mold foaming. After mixing non-foaming gel and foaming particles, the foaming particles after foaming are still in granular shapes and piled up on each other and surround the periphery of non-foaming gel, possessing respective elastic coefficient for non-foaming gel and foaming particles, so as to become an elastic composite shoe material. Thus, compared to conventional single foaming shoe material for long-term wearing, the present invention may achieve better durability.

Description

Flexible composite shoe material process and its finished products

The invention relates to a process and a finished product of a shoe material, in particular to a non-foamed gel mixed with foamed particles, and the foamed particles are still stacked in a granular form after being foamed and surround the non-foamed gel week. On the side, a product with multiple elastic effect shoes is formed.

In daily life, it is necessary to rely on the feet to support the weight of the whole body. Whether it is the basic movement of standing and walking, even running and intense exercise do have a lot of burden for the feet. All of the above actions need to rely on the large amount of gravity changes on both feet. Today, the public has long been accustomed to wearing shoes to go out, whether it is simply going out, outdoor activities or even intense sports. The shoes not only protect the shoes, but also provide stable walking and pedaling, slowing down the reaction of various postures and even sports to the feet, overcoming discomfort and pain. The soles of the shoes are often in contact with the ground, frictional forces, and withstand the reaction from the weight of the human body and from the ground activities. For practicality and comfort, the sole needs to have appropriate cushioning characteristics in design.

In order to relieve the burden on the feet and reduce the reaction force from the ground to directly transmit the lower limbs of the human body, the currently known techniques have the following structural forms, such as the use of a single material foaming, hollow airbags, etc. on the sole or sole and The position between the uppers. However, the single material foamed sole has an initial cushioning effect. The performance is good, and the elastic cushioning effect drops rapidly with the wearing time. The use of a hollow airbag increases the weight of the shoe. The number of airbags in the excessive part increases the overall weight excessively. It is also necessary to worry that the airbag is damaged by sharp foreign body puncture, and the airbag cannot provide cushioning. Even walking in the water storage area causes the shoes to absorb water and ooze back into the shoes, which makes the wearer feel the uncomfortable feeling of the soles of the feet, and causes the shoes to emit annoying odor and other defects.

The main object of the present invention is to produce a mixture of non-foamed gel and expanded particles, and the expanded particles are still stacked in a granular form after being foamed to surround the non-foamed gel peripheral side, providing separate non-foaming. The elastic coefficient of the gel and the foamed particles constitutes an elastic composite shoe material, so that it has better durability than the conventional single foam material shoe material under long-term wearing, and can avoid the damage of the airbag type sole product. There are derivative defects such as adsorbed water back osmosis.

The invention relates to an elastic composite shoe material process comprising: immersing, non-foaming gel immersed in a container containing a surface treatment agent for 5 seconds to 10 seconds, the surface treatment agent adheres to the surface of the non-foamed gel, and destroys the non-foaming The surface of the gel is roughened; dried, the non-foamed gel with the surface treatment agent attached thereto is taken out from the container, and dried by oven drying at 45 ° C to 50 ° C for 3 to 5 minutes, and then allowed to stand for cooling, so that the surface The treatment agent forms an outer coating on the surface of the non-foamed gel; the mixture is mixed, and the non-foamed gel and the foamed particles are dried and mixed in the mixer; the mold is foamed, and the non-fabricated mixture is mixed by the mixer. The foamed gel and the foamed particles are filled in the cavity of the mold, and the high-temperature gas flows into the cavity of the mold for 150 to 250 seconds, so that the foamed particles are expanded and expanded to maintain the granular shape and are thermally combined with each other; The cooling water flows through the cavity of the mold for 150 to 250 seconds, so that the foamed particles shrink, after Waiting for 80~120 seconds to remove the elastic composite shoe material composed of non-foamed gel and foamed particles, and the non-foaming gel elastic coefficient is greater than or equal to the elastic coefficient of the foamed particles, and the partially expanded particles are particles. The shape is completely surrounded by the non-foamed gel, and the partially expanded particles are in a granular shape and do not completely surround the non-foamed gel.

An elastic composite shoe material comprising: a body comprising a plurality of non-foamed gels and a plurality of expanded particles in a granular form, and the plurality of non-foamed gels having a modulus of elasticity greater than that of the plurality of expanded particles The modulus of elasticity, and the color of the plurality of non-foamed gels are different from the color of the plurality of expanded particles, and the plurality of expanded particles are partially partially wrapped around the plurality of non-foamed gels, and the plurality of expanded particles are The portion does not completely surround the plurality of non-foamed gels such that the non-foamed gel is located on the circumferential side surface of the body.

1‧‧‧Non-foaming gel

11‧‧‧Outer film

2‧‧‧Surface treatment agent

3‧‧‧ Container

4‧‧‧Foamed particles

5‧‧‧mixer

6‧‧‧Mold

61‧‧‧ cavity

7‧‧‧ Ontology

The first figure is a flow chart of the process of the elastic composite shoe material of the present invention.

The second figure is a schematic diagram of the non-foamed gel soaking surface treatment agent of the present invention.

The third figure is a schematic cross-section of the non-foamed gel of the present invention.

The fourth figure is a schematic diagram of the mixing of the non-foamed gel and the expanded particles of the present invention in a mixer.

The fifth figure is a schematic view of a cavity in which the non-foamed gel and the foamed particles of the present invention are filled in a mold.

The sixth drawing is a schematic diagram of foaming of the foamed gel and foamed particles of the present invention in a mold.

The seventh figure is a schematic view of the finished product of the elastic composite shoe material of the present invention.

The eighth figure is a schematic cross-sectional view of the elastic composite shoe material of the present invention.

Referring to the first figure, the process of the elastic composite shoe material of the present invention is shown, which includes the following steps of soaking, drying, mixing, and foaming of the mold.

The above steps are explained below

The immersed, non-foamed gel 1 is immersed in the container 3 containing the surface treatment agent 2, as shown in the second figure, the surface treatment agent 2 is attached to the surface of the non-foamed gel 1 and destroys the non-foamed gel. The surface of 1 roughens its surface. The non-foamed gel 1 is TPO, TPU, TPE, EVA, rubber or PU, and the surface treatment agent 2 is TPU hot melt adhesive, PU solvent glue, solvent-dissolved maleic anhydride grafted elastomer, Solvent-dissolved rubber.

Drying, taking out the non-foamed gel 1 to which the surface treatment agent 2 is attached from the container 3, and drying it in an oven at 45 ° C to 50 ° C for 3 to 5 minutes, and then standing and cooling, so that the surface treatment agent 2 is not emitted. An outer cover film 11 is formed on the surface of the bubble gel 1, as shown in the third figure.

After mixing, the dried non-foamed gel 1 and the expanded beads 4 are mixed in the mixer 5, as shown in the fourth figure, the figure shows that the non-foamed gel 1 is coated with hatching and foamed. Particle 4 is clearly white and represents a different color. The foamed particles are any one or a mixture of two or more of E-TPEE, E-TPO, E-TPU, E-EVA, or E-TPAE (E-PEBA).

The mold is foamed, and the non-foamed gel 1 and the expanded particles 4 mixed by the mixer 5 are filled in the cavity 61 of the mold 6, as shown in the fifth and sixth figures, and the high-temperature gas flows into the mold 6. The cavity 61 continues for 150 to 250 seconds, and the foamed particles 4 are expanded and expanded to maintain the granular shape and are thermally combined with each other; and the cooling water flows through the mold 6. The cavity 61 continues for 150 to 250 seconds, so that the foamed particles 4 shrink, and then wait for 80 to 120 seconds to take out the elastic composite shoe material having the non-foamed gel 1 and the foamed particles 4 to obtain a non-foaming condensation. The elastic modulus of the rubber 1 is larger than the elastic modulus of the expanded particles 4, and the partially expanded particles 4 are completely surrounded by the non-foamed gel 1 in a granular form, and the partially expanded particles 4 are in a granular form and do not completely surround the non-foamed gel. 1, such as the seventh and eighth pictures. The high temperature gas system adopts water vapor of 100 ° C to 130 ° C, the high temperature gas flows into the cavity 61 for 200 seconds, the cooling water adopts the temperature range of 25 ° C to 35 ° C, and the cooling water flows into the cavity 61 for 200 seconds. good.

Thus, the elastic composite shoe material can be obtained through the above elastic composite shoe material process, which comprises an integrally formed body 7 comprising a plurality of non-foamed gels 1 and a plurality of expanded beads 4 in a granular form, and the plural The non-foamed gel 1 has a modulus of elasticity greater than that of the plurality of expanded beads 4, and the color of the plurality of non-foamed gels 1 is different from the color of the plurality of expanded beads 4, and the plurality of expanded beads 4 are Partially surrounding the plurality of non-foamed gels 1 and the portion of the plurality of expanded particles 4 not completely surrounding the plurality of non-foamed gels 1 such that the non-foamed gel 1 is located on the circumferential side surface of the body 7. .

The surface treatment agent destroys the surface of the non-foamed gel 1 and forms the outer film 11 on the surface of the non-foamed gel 1, thereby increasing the heat fusion between the non-foamed gel 1 and the expanded particles 4 in the mold 6. The bonding effect is controlled, and the non-foamed gel 1 and the expanded particles 4 are in a granular form and an irregular arrangement, and the elastic coefficient of the non-foamed gel 1 is controlled to be higher than or equal to the elasticity of the expanded particles 4. Under the coefficient, it becomes an innovative shoe material with a composite cushioning effect.

The color of the aforementioned non-foamed gel 1 is different from the color of the plurality of expanded beads 4. By adjusting the color matching of the non-foamed gel 1 and the expanded particles 4, the effect of changing the color distribution of the appearance of the shoe material is changed. Further, the non-foamed gel 1 has two or more different colors, and the non-foamed gel 1 of the two colors is indicated by the light color and the dark hatching in the second, seventh, and eighth figures, respectively.

Claims (9)

The invention relates to an elastic composite shoe material process comprising: immersing, non-foaming gel immersed in a container containing a surface treatment agent for 5 to 10 seconds, the surface treatment agent adheres to the surface of the non-foamed gel, and destroys the non-foaming gel The surface of the glue is roughened; dried, the non-foamed gel with the surface treatment agent attached thereto is taken out from the container, and dried by oven at 45 ° C ~ 50 ° C for 3 to 5 minutes, and then allowed to stand for cooling, so that the surface treatment The agent forms an outer coating on the surface of the non-foaming gel; the mixture is mixed, and the non-foaming gel and the foamed particles are dried and mixed in the mixing machine; the mold is foamed, and the non-foaming is mixed by the mixing machine. The gel and the foamed particles are filled in the cavity of the mold, and the high-temperature gas flows into the cavity of the mold for 150 to 250 seconds, so that the foamed particles are expanded and expanded to maintain the granular shape and are thermally combined with each other; The water flows through the cavity of the mold for 150~250 seconds, so that the foamed particles shrink, and then wait for 80~120 seconds to take out the elastic composite shoe material composed of non-foamed gel and foamed particles, and non-foaming gel. The elastic modulus is greater than the elastic modulus of the expanded particles, and the partially expanded particles are Full particulate granular not completely surround the non-foamed gel coating surrounding non-foaming gel, and the partially foamed particles. The elastic composite shoe material process according to claim 1, wherein the high temperature gas system adopts water vapor of 100 ° C to 130 ° C, the high temperature gas flows into the cavity for 200 seconds, and the cooling water adopts the temperature of 25 ° C to 35 ° C. It is preferred that the cooling water flows into the cavity for 200 seconds. The elastic composite shoe material according to claim 2, wherein the non-foamed gel is TPO, TPU, TPE, EVA, rubber or PU, and the plurality of expanded particles are E-TPEE, Any one or a mixture of two or more of E-TPO, E-TPU, E-EVA, or E-TPAE (E-PEBA). The elastic composite shoe material process according to any one of claims 1 to 3, wherein the surface treatment agent is TPU hot melt adhesive, PU solvent glue, solvent-dissolved maleic anhydride grafted elastomer, solvent Dissolved rubber. An elastic composite shoe material comprising: a body comprising a plurality of non-foamed gels and a plurality of expanded particles in a granular form, and the plurality of non-foamed gels having a modulus of elasticity greater than that of the plurality of expanded particles The modulus of elasticity, and the color of the plurality of non-foamed gels are different from the color of the plurality of expanded particles, and the plurality of expanded particles are partially partially wrapped around the plurality of non-foamed gels, and the plurality of expanded particles are The portion does not completely surround the plurality of non-foamed gels such that the non-foamed gel is located on the circumferential side surface of the body. The elastic composite shoe material according to claim 5, wherein the plurality of non-foamed gels are TPO, TPU, TPE, EVA, rubber or PU, and the plurality of expanded beads are E-TPEE, E-TPO, Any one or a mixture of two or more of E-TPU, E-EVA, or E-TPAE (E-PEBA). The elastic composite shoe material according to claim 5 or claim 6, wherein the volume of the plurality of non-foamed gel single particles is larger than the volume of the single particles of the plurality of expanded particles, and the number of the plurality of expanded particles is more than the non-fat The amount of foaming gel. The elastic composite shoe material of claim 7, wherein the plurality of non-foamed gels have two or more different colors. The elastic composite shoe material according to claim 8, wherein the system is a midsole of the shoe. Product.